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Bayesiansk ADF-enhedsrodstest

Den Bayesianske Augmented Dickey-Fuller (BADF) enhedsrodstest omformulerer den klassiske ADF-test inden for et Bayesiansk rammeværk. I stedet for at beregne en frequentistisk p-værdi kvantificerer den evidens for eller imod en enhedsrod ved at sammenligne posterior sandsynligheder eller Bayes-faktorer under nulhypotesen (enhedsrod) og den alternative hypotese (stationaritet), idet den inddrager forudgående antagelser om den autoregressive parameter.

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Kilder

  1. Sims, C. A., & Uhlig, H. (1991). Understanding unit rooters: A helicopter tour. Econometrica, 59(6), 1591–1599. DOI: 10.2307/2938280
  2. Koop, G., Osiewalski, J., & Steel, M. F. J. (1992). Bayesian analysis of long-run multipliers in cointegrating models. Journal of Econometrics, 54(1–3), 27–44. link

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ScholarGate. (2026, June 3). Bayesian Augmented Dickey-Fuller Unit Root Test. ScholarGate. https://scholargate.app/da/econometrics/bayesian-adf-unit-root-test

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ScholarGateBayesian ADF unit root test (Bayesian Augmented Dickey-Fuller Unit Root Test). Hentet 2026-06-15 fra https://scholargate.app/da/econometrics/bayesian-adf-unit-root-test · Datasæt: https://doi.org/10.5281/zenodo.20539026